Forums: Skydiving: Gear and Rigging:
'Splicing' Spectra

 


jmidgley  (C 103474)

Mar 9, 2004, 8:22 AM
Post #1 of 4 (825 views)
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'Splicing' Spectra Can't Post

Hi

If you wanted to splice (fingertrap) a length of spectra (1000) into an existing length of line, how long would you make the overlap, to retain a reasonable proportion of the original strength? I presume a bar tack (at each end of the overlap?) would be needed for security?

Opinions welcome.

Regards
John


ernokaikkonen  (D 12)

Mar 9, 2004, 1:03 PM
Post #2 of 4 (758 views)
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Re: [jmidgley] 'Splicing' Spectra [In reply to] Can't Post

For what application?

If you just fingertrap the outer line on the inner one, you'll leave the frayed edges of the outer line visible, which is not aesthetically pleasing nor practical.

For non-skydiving purposes I just usually make a fingertrapped loop on each lengh of line and interlock the loops. For any skydiving application you really want a full length of line.


rushmc  (No License)

Mar 9, 2004, 5:58 PM
Post #3 of 4 (721 views)
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Re: [jmidgley] 'Splicing' Spectra [In reply to] Can't Post

For an eye or loop the buried measurement of line is aprox 3" to maintain the strength. For a straight splice like at the cascade it is aprox 6". Hope that is what you are looking for. (These are rough numbers based on your question)


jmidgley  (C 103474)

Mar 15, 2004, 1:41 AM
Post #4 of 4 (647 views)
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Re: 'Splicing' Spectra [In reply to] Can't Post

Thanks for both responses; looking at the application, I decided (as suggested) that it would be better to replace the whole line.

Cheers
John



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